﻿<?php
/**
 * @author yfl  QQ554665488
 * demo Time funtion
 */
//返回今天的开始时间和结束时间
function day_now()
{
    $arr = [
        mktime(0, 0, 0, date('m'), date('d'), date('Y')),
        mktime(23, 59, 59, date('m'), date('d'), date('Y')),
    ];
    return $arr;
}

//返回昨天开始结束时间 改造上边的方法
function day_yesterday()
{
    $yesterday = date('d') - 1;
    $arr = [
        mktime(0, 0, 0, date('m'), $yesterday, date('Y')),
        mktime(23, 59, 59, date('m'), $yesterday, date('Y')),
    ];
    return $arr;
}

//获取当前时间的本周开始结束时间
function week_now()
{
    $arr = [
        strtotime(date('Y-m-d', strtotime("-1 week Monday", time()))),
        strtotime(date('Y-m-d', strtotime("+0 week Sunday", time()))) - 1
    ];

    return $arr;
}

// var_dump(week_now());
// echo date('Y-m-d',strtotime('next Monday',time()));
//返回上周开始和结束的时间戳
function last_week()
{
    // 1520179200   1520783999
    $arr = [
        // date('Y-m-d',strtotime('last week Monday',time())),
        // date('Y-m-d',strtotime('last week Sunday',time()))
        strtotime('last week Monday', time()),
        strtotime('last week Sunday +1 days -1 seconds', time())
    ];
    return $arr;
}

// var_dump(last_week());
// 返回本月开始和结束的时间戳
function now_month()
{
    $arr = [
        mktime(0, 0, 0, date('m'), 1, date('Y')),
        mktime(23, 59, 59, date('m'), date('t'), date('Y'))
    ];
    return $arr;
}

// var_dump(now_month());
// 返回某一年某一月的开始和结束的时间戳
function month_year($year, $month)
{
    return [
        $begin = mktime(0, 0, 0, $month, 1, $year),
        $end = mktime(23, 59, 59, $month, date('t', $begin), $year)
    ];
}

// var_dump(month_year(2017,3));

// 返回当前季度的开始时间和结束时间
function now_quarter($month = 0)
{
    $month = $month != 0 ? $month : date('n');
    $season = ceil($month / 3);
    return [
        mktime(0, 0, 0, ($season - 1) * 3 + 1, 1, date('Y')),
        mktime(0, 0, 0, $season * 3, date('t'), date('Y')) - 1
    ];
}

// var_dump(now_quarter());
// 返回上个月开始和结束的时间戳
function lastMonth()
{
    $begin = mktime(0, 0, 0, date('m') - 1, 1, date('Y'));
    $end = mktime(23, 59, 59, date('m') - 1, date('t', $begin), date('Y'));

    return [$begin, $end];
}
// var_dump(lastMonth());
	
	
	
	